B127B 2014 Chevrolet Silverado Code - Rearview Camera Input Signal Circuit
Quick Answer
When the transmission is placed into R, a 12 V signal is sent to the Rearview Camera indicating that camera operation is requested. Common causes include Faulty Rearview Camera, Rearview Camera harness is open or shorted, Rearview Camera circuit poor electrical connection. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
- What it means
- B127B 2014 Chevrolet Silverado indicates Rearview Camera Input Signal Circuit.
- Common causes
- Common causes include Faulty Rearview Camera, Rearview Camera harness is open or shorted, Rearview Camera circuit poor electrical connection.
- Severity
- Moderate - service should be scheduled soon.
- Can I drive?
- The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
Code B127B 2014 Chevrolet Silverado Description
The Human Machine Interface Control Module Bypass Module is part of the video signal + and a video signal − circuits path from the Rearview Camera to the Human Machine Interface Control Module as well as the digital Low Voltage Differential Signaling (LVDS) path (USB cable) between the Human Machine Interface Control Module and Info Display Module and needs to be active for either signal to be received by these modules. The Human Machine Interface Control Module Bypass Module is not connected to serial data and uses the reverse lamp voltage input to determine the vehicle gear state.
The Diagnostic Trouble Code (DTC) will be set when the video signal from the rearview camera has not been received by the Radio for 2.5 s.
What are the Possible Causes of the DTC B127B 2014 Chevrolet Silverado?
- Faulty Rearview Camera
- Rearview Camera harness is open or shorted
- Rearview Camera circuit poor electrical connection
- Faulty Human Machine Interface Control Module
- Faulty Info Display Module
How to Fix the DTC B127B 2014 Chevrolet Silverado?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B127B 2014 Chevrolet Silverado code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
Need more information about the B127B 2014 Chevrolet Silverado code?
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Frequently Asked Questions about B127B 2014 Chevrolet Silverado Code
1. What are the common symptoms of OBDII code B127B (2014 Chevrolet Silverado)?
- The common symptoms of code B127B include a malfunctioning rearview camera display, a blank screen, or intermittent camera operation.
2. What can cause the OBDII code B127B in a 2014 Chevrolet Silverado?
- The code B127B typically indicates a fault in the rearview camera input signal circuit, which can be caused by issues with the camera itself, wiring problems, or a faulty control module.
3. How can I diagnose the OBDII code B127B on my 2014 Chevrolet Silverado?
- Diagnosis of code B127B involves checking the rearview camera connections, inspecting the wiring for any damage or corrosion, and using a scan tool to monitor the camera input signal.
4. Can I repair the OBDII code B127B on my 2014 Chevrolet Silverado at home?
- While some DIY enthusiasts may attempt to repair the rearview camera input signal circuit issue causing code B127B, it is recommended to consult a professional technician for an accurate diagnosis and proper repair.
5. Is it safe to drive my 2014 Chevrolet Silverado with the OBDII code B127B active?
- It is generally safe to drive your vehicle with the B127B code, but it is important to address the underlying issue promptly to ensure proper functioning of the rearview camera system.
6. How much does it typically cost to repair the OBDII code B127B on a 2014 Chevrolet Silverado?
- The cost of repairing code B127B can vary depending on the underlying cause. It is advisable to get a diagnostic from a qualified mechanic to determine the exact repair cost.
7. Can a faulty rearview camera cause the OBDII code B127B on a 2014 Chevrolet Silverado?
- Yes, a malfunctioning rearview camera can trigger the B127B code if it is not sending the proper input signal to the vehicle's control module.
8. Are there any recalls or technical service bulletins related to the OBDII code B127B on a 2014 Chevrolet Silverado?
- It is recommended to check with your local Chevrolet dealership or online resources for any recalls or technical service bulletins related to code B127B to see if your vehicle may be eligible for free repairs.
9. Is resetting the OBDII code B127B on a 2014 Chevrolet Silverado as simple as clearing the code with a scan tool?
- While clearing the code with a scan tool may temporarily remove the error code, it is crucial to address the root cause of the issue to prevent the code from reoccurring.
10. Can extreme weather conditions affect the rearview camera input signal circuit and trigger the OBDII code B127B on a 2014 Chevrolet Silverado?
- Yes, extreme temperatures or moisture exposure can potentially damage the rearview camera system components or wiring, leading to the B127B code.
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